Imitation marble and granite.



No. 880,753. PATENTED MAR. 3, 1908.

. G. & W. J. H. PAYNE.

IMITATION MARBLE AND GRANITE.

APPLICATION FILED NOV. l. 1907. E G.' ak

\l/ A Y Unra arras` GEORGE PAYNE, OF LONDON, ENGLAND, AND WILLIAM J. E. PAYNE, OF SAN FRANCISCO, CALIFORNIA.

Specification of Letters Patent.

Patented March 3, 11908.

Application tiled November 1| 1907. Serial No. 400310.

T o all whom' it may concern:

Be it known that we, GE'oRGE PAYNE and WILLIAM JOHN HURRELL PAYNE, subjects of the King of Great Britain, residing, respectively, at London, England, and San Francisco, California, United States of America, have invented new andl useful Improvements in Imitation Marble and Granite, of which the following is a specification.

The object of the present invention is to produce imitation marble or granite blocks having a polished and ornamental surface made of petrefite or other similar magnesite cement. The cement may be in the form of a thin coating on a suitable backing, such as slate, wood, sheet metal, cardboard or bricks, or it may be solid in the form of tiles.

The magnesite or other similar cement is placed on a very smooth or olished surface, such as smooth or polished g ass, and pressed into close contact with the same. The backing,when such is used, is then ressed against the cement before this latter as set and adheres to the cement. When the cement has set it is removed from, the glass by slightly twisting the cement and backing with relation to the smooth surface, thereby allowin air to enter between the two surfaces. t will be found that the magnesite cement has acquired\ a beautiful hard polished surface. In some cases I may form tiles, bricks or building blocks, of solid magnesite cement by forming them in molds having oneor more highly polished surfaces.

When desired I may apply suitable colorsl to the back of the cement before placing the backing, when such is used, in contact with the cement. By these means various effects may be obtained, some representing marble or granite, as the coloring matter passes into the cement and is seen through the polished surface thereof.

The invention is illustrated inthe accom process. Fig. 4 shows a fourth stage in the recess. Fi 5 is a sectional elevation of a nished bloc In constructing a block of imitation marble, the cement, l), is spread by suitable means on a polished or smooth sheet of glass a, and suitablecolor, c, is applied to the upper surface or back of the cement b. The slates or othersuitable sheets of material, d, are pressed upon the color c, which, when the block is removed from the glass, is seen through the polished surfaceof the Cement. The above steps are represented' at Fig. 1. It will be understood that suitable coloring matters are chosen to represent different marbles or granite, which matters are well known to those engaged in the art of pro` ducing imitation marble. A second layer of magnesite cement, e, see Fig. 2, is then placed on the back of the slates or other suitable sheets d, after which Ia second set of slates or other suitable sheets, f,is placed on the back of the cement c, which sheets break joint with their first set d, and they are firmly pressed onto the same. The whole mass is allowed to set and is then removed from the glass a by twisting it in,- relation to the glass, thereby allowing air to enter between the glass and cement b. Arrother layer of magnesite cement, h, see Fig. 3, is then placed on the polished or smooth glass a, and coloring matter g is placed on the cement h, after which the block shown in Fig. 2 is turned over and is pressed firmly on the coloring matter g.'

When the block shown in Fig. 3 has set it is removed from the glass a in the manner hereinbefore described and another layer, y', of magnesite cement is spread on the glass a and coloring matter, t', is placed thereon. The block shown in Fig. 3 is then placed on its' edge on the coloring matter i until the cement j has set. The other three edges of the block are subsequently produced in the same manner.

The finished block is shown in section at Fig. 5. It has a polished surface and the apdpearance of imitation marble on all its s1 es.

What we claim as our invention is:-

1. The process of r'oducing artificial marble and the like, wich consists in, (l),l spreading a layer of magnesite cement on a s eet of smooth glass, (2), placing coloring matter on the magnesite cement, and (3), pressing backing sheets of suitable material onto the coloring matter.

2. The rocess of producing artificial marble an the like, which consists in, (1'),

of suitable material onto the last mentioned layer of cement and allowing same to set, (6), spreading another layer of magnesite cement onto glass, (7), placing coloring matter onto same, and (8), pressing the block made by steps 1 to 5 of this process onto the last mentioned coloring matter.

'3. In an imitation blockof marble, the combination of a layer of magnesite cement, a layer of coloring matter, a layer of backing sheets of suitable material, a second layer of cement, a second layer of backing sheets of suitable material, a 'second layer of coloring matter, and another layer of magnesite cement, all adhering together in the order named.

4. In an imitation block of marble, the combination of a layer of magnesite cement, a layer of coloring matter, a layer of backing sheets of suitable material, a second layer of cement, a second layer of backing sheets of suitable material, a second layer of coloring matter, another layer of magnesite cement, all adherin together in the order named, a layer of -co oring material around the edges of the before mentioned layers, and an outer layer of magnesite' cement around thelast mentioned layer of coloring matter.

In Witness whereof We have hereunto set our hands in presence of two Witnesses.

' GEORGE PAYNE.

WILLIAM J. H. PAYNE.

Witnesses to ,signature of George Payne:

WM. GIRLING, CHAS. WALTER.

Witnesses to signature of W. J. H. Payne:

J.1P. ORMOND, D. B. RICHARDS. 

